Question

The area of a rectangular painting is given by the trinomial x^2+2x-15. What are the possible dimensions of the painting? Use factoring, please walk me through the steps. Thank you.

Answer 1

\[x^2+2x-15\]

Answer 2

to factor you need to think of 2 numbers whose product is -15 and whose sum is +2

Answer 3

-3 and 5

Answer 4

right
so can you write the 2 factors?

Answer 5

uhh, (x+5) and (x-30?

Answer 6

(x-3),

Answer 7

(x - 3)

Answer 8

right

Answer 9

Yeah I wasn't holding down shift, thanks

Answer 10

yw